Hollywood studios have approved a new technology and licensing arrangement that should remove a major obstacle consumers now face with burning movies they buy digitally over the Internet onto a DVD that will play everywhere. Sonic Solutions is introducing on Thursday the Qflix system for adding a standard digital lock to DVDs burned in a computer or a retail kiosk. The lock, known as “content scrambling system,” or CSS, is backed by the studios, TV networks and other content creators and comes standard on prerecorded DVDs today. All DVD players come equipped with a key that fits the lock and allows for playback.